Eastman-kodak Company

James R Overton

David Dunlap Cornell

Carl M Lentz

Charles Edwan Sumner, Jr

Steven Lee Stafford

Michael R Cushman

Burns Davis

Roger M Schulken, Jr

Polyester resins useful for forming containers having improved resistance to gas permeability comprised of recurring units corresponding to the structure ##STR1## wherein R is selected from the group consisting of ##STR2##

Polyester from hydroxyethoxyphenoxy acetic acid with improve gas barrier

An electrolytic method for the simultaneous preparation of a diaryliodonium salt and an alkoxide salt comprises adding to the anode compartment of an electrolytic cell, comprised of an anode, a first electrolytic solution comprising an aromatic compound, an iodoaromatic compound, a solvent and a first organic salt; adding to the cathode compartment of the cell, comprised of a cathode, a second electrolytic solution comprising a hydroxyalkyl compound and a second organic salt; and applying to the anode and the cathode an electric potential, to form diaryliodonium salt in the anode compartment and an alkoxide salt in the cathode compartment. Esters of an aromatic acid are prepared by carbonylating an admixture of the diaryliodonium salt and the alkoxide salt by the addition of carbon monoxide thereto.

Electrolytic method of simultaneously preparing diaryliodonium salt and

The present invention provides a process for the preparation of aromatic dicarboxylic acids by the carbonylation of aromatic diiodides. The aromatic diiodides are reacted with carbon monoxide in the presence of a soluble rhodium catalyst in a hydrocarbon acid reaction medium to prepare the aromatic dicarboxylic acids.

Carbonylation process for the production of aromatic dicarboxylic acids

The present invention provides a novel process for the preparation of styrene, stilbene, and/or substituted derivatives thereof. The process involves the reaction of an aryl sulfonyl chloride with an olefinic compound in the presence of a catalytic amount of a metal catalyst consisting essentially of palladium.

Preparation of styrene and stilbene compounds

The present invention provides a process for the preparation of aryl carboxylic acids and derivatives thereof by the carbonylation of diaryliodonium salts. The diaryliodonium salts are reacted with carbon monoxide and water or an alcohol or amine in a base reaction medium having a pK.sub.b greater than about 8.

Carbonylation process for the production of aromatic acids and

The present invention provides a process for the preparation of monoesters of dicarboxylic acids by the carbonylation of carboxyphenyl-triarylphosphonium salts. The carboxyphenyl-triarylphosphonium salts are reacted with carbon monoxide and an alcohol in a base reaction medium having a pK.sub.b greater than about 8.

Carbonylation process for the production of monoesters aromatic

The present invention provides a process for the preparation of aryl carboxylic acids by the carbonylation of diaryliodonium salts. The diaryliodonium salts are reacted with carbon monoxide in the presence of a zero-valent palladium in a hydrocarbon acid reaction medium to prepare the aromatic carboxylic acids.

Carbonylation process for the production of aromatic acids

The present invention provides a process for the preparation of aryl carboxylic acids and derivatives thereof by the carbonylation of aryl sulfonyl chlorides. The aryl sulfonyl chlorides are reacted with carbon monoxide and water or an alcohol or amine in the presence of a zero-valent metal catalyst consisting essentially of palladium.

The present invention provides a process for the preparation of aryl carboxylic acids and derivatives thereof by the carbonylation of triaryl sulfonium salts. The triaryl sulfonium salts are reacted with carbon monoxide and water or an alcohol or amine in the presence of a triaryl phosphine and a zero-valent metal catalyst selected from palladium or rhodium.

Growing community of inventors

Kingsport, TN, United States of America

James R Overton